An over-temperature alarm device for a setting machine

By installing a movable plate, rollers, fan blades, and a gas fire extinguisher inside the ventilation duct of the stenter, the problems of short lifespan of high-temperature probes and fiber lint removal inside the ventilation duct are solved, achieving efficient temperature detection and fire prevention, and improving equipment safety and service life.

CN224280780UActive Publication Date: 2026-05-26ZHEJIANG YUNZHONGMA CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YUNZHONGMA CO LTD
Filing Date
2025-06-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The high-temperature probes inside the ventilation ducts of existing stenters have a short service life and cannot clean fiber lint, posing a fire hazard. Furthermore, after a high-temperature warning is issued, workers may miss the best rescue opportunity.

Method used

An over-temperature alarm device was designed, comprising a movable plate, rollers, fan blades, a cleaning plate, a liquid storage tank, and a gas fire extinguisher. The device detects temperature through an inclined temperature measuring section, uses rollers and fan blades to clean up fiber lint, and discharges hot air and gas fire extinguisher through the liquid storage tank to extinguish fires when they are at high temperatures, thus preventing fires.

Benefits of technology

It effectively detects the temperature of ventilation ducts, removes fiber lint, reduces the risk of spontaneous combustion, and quickly exhausts hot air and extinguishes fires at high temperatures, thus preventing fires and improving safety and equipment lifespan.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses an over-temperature alarm device for a stenter, including a stenter body. The upper surface of the stenter body is fixedly connected to a ventilation duct. A movable plate is installed inside the ventilation duct, and a high-temperature probe is fixedly installed on the side of the movable plate. The side of the movable plate is rotatably connected to a rotating shaft. One end of the rotating shaft is fixedly connected to a connecting wire. The outer side of the rotating shaft is fixedly connected to a fan blade and a cleaning plate. A telescopic plate is installed inside the movable plate, and a roller is installed at one end of the telescopic plate. The outer side of the ventilation duct is fixedly connected to an auxiliary exhaust duct. This utility model utilizes the inclined setting of the temperature measuring section, using gravity to move the movable plate and the high-temperature probe, detecting and alarming the temperature at different locations within the temperature measuring section. The air flowing inside the ventilation duct drives the fan blade to rotate, and simultaneously causes the cleaning plate to rotate, removing fiber lint adhering to the inner wall of the ventilation duct, reducing the risk of spontaneous combustion of the fiber lint.
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Description

Technical Field

[0001] This utility model relates to the field of setting machine technology, specifically to an over-temperature alarm device for setting machines. Background Technology

[0002] A setting machine is a machine used in industrial manufacturing for setting and shaping, commonly used in the textile printing and dyeing industry. After textiles are dyed or bleached, they need to be dried and shaped again using a setting machine. During processing, a large amount of fiber inevitably falls off. In this process, fibers and other impurities can adhere to the ventilation ducts. Since fibers are flammable and the temperature inside the ventilation ducts of the setting machine is high, a fire can easily start. Therefore, it is necessary to monitor and provide early warning of the temperature inside the ventilation ducts.

[0003] According to Chinese Patent Publication No. CN 217358768 U, a stenter exhaust overheat alarm device is disclosed, which includes a stenter, an exhaust pipe, an operating table and a connecting pipe. The device uses a transmission mechanism to bring a high-temperature sensing probe close to the connecting pipe to detect the temperature and controls an audible and visual alarm to remind safety personnel to take safety measures and thus avoid major accidents.

[0004] However, the aforementioned patent uses a motor to drive a pulley to move the high-temperature sensing probe inside the ventilation duct. The motor's lifespan is reduced due to the high temperature inside the ventilation duct, and it cannot clean the fibers attached to the inner wall of the ventilation duct. These fibers pose a fire hazard and make it difficult to implement response measures after setting up a high-temperature warning for the ventilation duct. This could easily cause staff to miss the best rescue opportunity. Utility Model Content

[0005] The purpose of this invention is to provide an over-temperature alarm device for a setting machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an over-temperature alarm device for a stenter, comprising a stenter body, the upper surface of which is fixedly connected to a ventilation duct, a movable plate inside the ventilation duct, a high-temperature probe fixedly installed on the side of the movable plate, the side of the movable plate being rotatably connected to a rotating shaft, one end of the rotating shaft being fixedly connected to a connecting line, a fan blade fixedly connected to the outer side of the rotating shaft, a cleaning plate fixedly connected to the outer side of the rotating shaft, a telescopic plate inside the movable plate, a roller at one end of the telescopic plate, an auxiliary exhaust duct fixedly connected to the outer side of the ventilation duct, a fixed plate fixedly connected to the inner wall of the auxiliary exhaust duct, a fixed plate fixedly connected to one end of a liquid storage cylinder, a piston rod inside the liquid storage cylinder, one end of the piston rod fixedly connected to a sealing plate, a smoke sensor fixedly installed inside the ventilation duct, and a gas fire extinguisher fixedly connected to the outer side of the ventilation duct.

[0007] Preferably, a temperature measuring section is provided on the ventilation duct, the temperature measuring section is inclined, and the inner wall of the temperature measuring section abuts against the roller.

[0008] Preferably, the roller is connected and fixed to the telescopic plate via a shaft, the movable plate has a rectangular groove inside, and the movable plate slides with the outer side of the telescopic plate through the rectangular groove. An elastic element is provided inside the rectangular groove, and the center of the movable plate is rotatably connected to the rotating shaft through a bearing sleeve.

[0009] Preferably, one end of the rotating shaft is fixedly connected to the connecting line, the other end of the connecting line is fixedly connected to the take-up roller, the take-up roller is fixedly installed on the top of the control console, the cleaning plates are symmetrically distributed on the outside of the rotating shaft, and one end of the cleaning plate is fixedly connected to the cleaning brush.

[0010] Preferably, the liquid storage tank is filled with organic heat-conducting oil, the liquid storage tank is slidably fitted with the piston rod, one end of the piston rod extends to one side of the fixed plate and is fixedly connected to the sealing plate, and the side of the sealing plate is bonded and fixed to the sealing ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features a high-temperature probe mounted on the side of a movable plate. By tilting the temperature measuring section, gravity is used to move the movable plate and the high-temperature probe, thereby detecting and alarming the temperature at different locations within the measuring section. A take-up roller can remove the movable plate from the temperature measuring section, improving the actual usage effect. The air flowing inside the ventilation duct drives the fan blades to rotate, which in turn causes the cleaning plate to rotate and remove the fiber lint adhering to the inner wall of the ventilation duct, reducing the risk of spontaneous combustion of the fiber lint.

[0013] The ventilation duct of this invention is fixedly connected to the auxiliary exhaust duct on the outside. When the temperature inside the ventilation duct is too high, the solution in the storage tank expands due to heat, which causes the piston rod to push the sealing plate upward and allow air to be discharged from the auxiliary exhaust duct, accelerating the discharge of high-temperature air and reducing the time that hot air stays. When the smoke sensor detects smoke, the gas fire extinguisher releases liquid carbon dioxide and vaporizes rapidly, thereby absorbing a large amount of heat and diluting the oxygen concentration through carbon dioxide, thus preventing the ventilation duct from spontaneously combusting and the formation of a fire. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the internal structure of the temperature measuring section of this utility model;

[0016] Figure 3 This is a cross-sectional view of the internal structure of the auxiliary exhaust pipe of this utility model;

[0017] Figure 4 This is a schematic diagram of the movable plate structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the internal structure of the movable plate of this utility model.

[0019] In the diagram: 1. Stenter body; 2. Ventilation duct; 201. Temperature measuring section; 3. Moving plate; 4. High temperature probe; 5. Rotating shaft; 6. Connecting line; 7. Take-up roller; 8. Control console; 9. Fan blade; 10. Cleaning plate; 11. Telescopic plate; 12. Roller; 13. Elastic element; 14. Auxiliary exhaust duct; 15. Fixed plate; 16. Liquid storage tank; 17. Piston rod; 18. Sealing plate; 19. Smoke sensor; 20. Gas fire extinguisher. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: an over-temperature alarm device for a setting machine, including a setting machine body 1. The upper surface of the setting machine body 1 is welded and fixed to a ventilation pipe 2. A temperature measuring section 201 is provided on the ventilation pipe 2. The temperature measuring section 201 is inclined and its inner wall abuts against a roller 12. A movable plate 3 is provided inside the ventilation pipe 2. The side of the movable plate 3 is connected and fixed to a high-temperature probe 4. The center of the movable plate 3 is rotatably connected to a rotating shaft 5 through a bearing sleeve. One end of the rotating shaft 5 is welded and fixed to a connecting line 6. The other end of the connecting line 6 is connected and fixed to a take-up roller 7. The take-up roller 7 is fixedly installed on the top of a control console 8. The side of the take-up roller 7 is connected and fixed to the output end of a motor. The length of the connecting line 6 can be adjusted by rotating the take-up roller 7 through the motor. The movable plate 3 moves inside the temperature measuring section 201 through the connecting line 6.

[0022] The outer side of the rotating shaft 5 is welded and fixed to the fan blade 9, and one end of the cleaning plate 10 is also welded and fixed to the outer side of the rotating shaft 5. The cleaning plates 10 are symmetrically distributed on the outer side of the rotating shaft 5, and one end of the cleaning plate 10 is connected and fixed to the cleaning brush. Air causes the rotating shaft 5 and fan blade 9 to rotate, which in turn drives the cleaning plate 10 to rotate. The cleaning plate 10 cleans the fiber lint on the inner wall of the temperature measuring section 201, and the lint is discharged with the airflow inside the temperature measuring section 201, preventing spontaneous combustion at high temperatures.

[0023] The movable plate 3 has a telescopic plate 11 inside, with a roller 12 at one end. The outer side of the ventilation pipe 2 is welded and fixed to the auxiliary exhaust pipe 14. The inner wall of the auxiliary exhaust pipe 14 is welded and fixed to the fixed plate 15. The fixed plate 15 is welded and fixed to one end of the liquid storage cylinder 16. A piston rod 17 is installed inside the liquid storage cylinder 16, with one end of the piston rod 17 welded and fixed to the sealing plate 18. A smoke sensor 19 is fixedly installed inside the ventilation pipe 2, and the outer side of the ventilation pipe 2 is welded and fixed to the gas fire extinguisher 20.

[0024] Roller 12 is connected and fixed to telescopic plate 11 via a shaft. A rectangular groove is formed inside the movable plate 3, which slides against the outer side of the telescopic plate 11. An elastic element 13 is installed inside the rectangular groove. Organic heat-conducting oil is placed inside the liquid storage cylinder 16, which slides against the piston rod 17. One end of the piston rod 17 extends to one side of the fixed plate 15 and is welded and fixed to the sealing plate 18. The side of the sealing plate 18 is bonded and fixed to the sealing ring.

[0025] Working principle: During use, the fan inside the ventilation duct 2 draws hot air from the stenter body 1 through the temperature measuring section 201. The temperature is detected by the high-temperature probe 4. By adjusting the length of the connecting line 6 using the take-up roller 7 and coordinating with the tilt setting of the temperature measuring section 201, the moving plate 3 and the high-temperature probe 4 can be moved to the detection position. The air flowing inside the temperature measuring section 201 causes the fan blade 9 to drive the rotating shaft 5 to rotate. The rotating shaft 5 drives the cleaning plate 10 to rotate and clean the fiber lint adhering to the inner wall of the temperature measuring section 201, preventing the lint from spontaneously combusting due to high temperature. When the temperature inside the temperature measuring section 201 exceeds the set temperature... The high-temperature probe 4 detects and issues an early warning in conjunction with the control panel 8. Similarly, the high temperature will cause the organic heat-conducting oil inside the liquid storage tank 16 to expand due to heat, which will push the piston rod 17 to disengage the sealing plate 18 from the fixed plate 15. The hot air in the temperature measuring section 201 can be discharged to the outside through the auxiliary exhaust pipe 14, thereby accelerating the air flow and reducing the impact of high temperature caused by the hot air staying for too long. When the ventilation pipe 2 spontaneously combusts and produces smoke, the smoke sensor 19 detects the smoke, and then the gas fire extinguisher 20 releases liquid carbon dioxide and vaporizes it to absorb heat for cooling. At the same time, the carbon dioxide is used to dilute the oxygen concentration to prevent spontaneous combustion and fire.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An over-temperature alarm device for a setting machine, comprising a setting machine body (1), characterized in that: The upper surface of the shaping machine body (1) is fixedly connected to the ventilation pipe (2). A movable plate (3) is installed inside the ventilation pipe (2). A high temperature probe (4) is fixedly installed on the side of the movable plate (3). The side of the movable plate (3) is rotatably connected to the rotating shaft (5). The rotating shaft (5) is fixedly connected to one end of the connecting line (6). The outer side of the rotating shaft (5) is fixedly connected to the fan blade (9). The outer side of the rotating shaft (5) is fixedly connected to one end of the cleaning plate (10). A telescopic plate (11) is installed inside the movable plate (3). 11) A roller (12) is provided at one end. The outer side of the ventilation pipe (2) is fixedly connected to the auxiliary exhaust pipe (14). The inner wall of the auxiliary exhaust pipe (14) is fixedly connected to the fixing plate (15). The fixing plate (15) is fixedly connected to one end of the liquid storage cylinder (16). A piston rod (17) is provided inside the liquid storage cylinder (16). One end of the piston rod (17) is fixedly connected to the sealing plate (18). A smoke sensor (19) is fixedly installed inside the ventilation pipe (2). The outer side of the ventilation pipe (2) is fixedly connected to the gas fire extinguisher (20).

2. The over-temperature alarm device for a setting machine according to claim 1, characterized in that: A temperature measuring section (201) is provided on the ventilation pipe (2). The temperature measuring section (201) is inclined and the inner wall of the temperature measuring section (201) abuts against the roller (12).

3. The over-temperature alarm device for a setting machine according to claim 2, characterized in that: The roller (12) is connected and fixed to the telescopic plate (11) through the shaft. The movable plate (3) has a rectangular groove inside. The movable plate (3) slides with the outside of the telescopic plate (11) through the rectangular groove. An elastic element (13) is provided inside the rectangular groove. The center of the movable plate (3) is rotatably connected to the rotating shaft (5) through the bearing sleeve.

4. The over-temperature alarm device for a setting machine according to claim 3, characterized in that: One end of the rotating shaft (5) is fixedly connected to the connecting line (6), and the other end of the connecting line (6) is fixedly connected to the take-up roller (7). The take-up roller (7) is fixedly installed on the top of the control console (8). The cleaning plates (10) are symmetrically distributed on the outside of the rotating shaft (5). One end of the cleaning plate (10) is fixedly connected to the cleaning brush.

5. The over-temperature alarm device for a setting machine according to claim 1, characterized in that: Organic heat-conducting oil is provided inside the liquid storage cylinder (16). The liquid storage cylinder (16) is slidably fitted with the piston rod (17). One end of the piston rod (17) extends to one side of the fixing plate (15) and is fixedly connected to the sealing plate (18). The side of the sealing plate (18) is bonded and fixed to the sealing ring.